Finishing machine



v 1,63 July n J. F. STANDISH 6333 FINISHING momma Qriinal Filed Jan.2. 192s Sheets--Sheet'l /NVENTOR 1,6, 6, July 19,. 1927. J. F STANDISH v I 3 333 FINISHING MACHINE Original Filed Jan.2. 1926 s Sheets-Sheet 2 brush.

Patented July 19, 1927.

MASSACHUSETTS, ASSIGNOR TO UNITED SHOE MACHINERY CORPORATION, OF PATERSUN, NEW JERSEY, A

TOI-IN F. STANDISH, 0F WINTIIBOP,

MASSACHUSETTS.

CORPORATION OF FINISHING MACHINE.

Application filed January 2, 1926, Serial No. 78,880. Renewed October 8, 1926.

This invention relates to finishing machines and is illustrated as embodied in a burnishing machine forjboots and shoes, of the type disclosed in United States Letters Patent No. 743,988 granted Nov. 10,1903, upon the application of Charles Pease. An object of the present invention is to provide an improved machine of this general type.

Machines of this type employing a rotary metallic burnishing tool, to which melted wax is supplied for transference to the surface of the work have long been used in finishing boots and shoes and particularly for burnishing the peripheral surfaces of the heels of such shoes. For spreading the wax over the surface of the burnishing tool prior .to its application to the work, a moving brush has been employed which rests against the periphery of the tool at a point near the rear upper side thereof away from the operator. Such tools have been commonly heated by means of a gas flame applied to the tool within the periphery at a point near the bottom of the tool. This arrangement, while it 1s reasonably eflicient for heating the tool and does not injure the brush so long as the tool is in rotation, is apt to destroy the bristles of the brush when the machine is at rest because the natural tendency of theheat from the flame is to rise in a substantially direct, vertical path. In view of the foregoing and in accordance with a feature of the invention the illus trated burnishing machine has a heating burner disposed with its orifice within the periphery of the burnishing tool at a point substantially diametrically opposite the point of application of the wax-spreading lVith this arrangement the brush is undamaged even when the tool is not retated, as the flame is so removed from the point of application of brush that the normal distribution of the heat can not injure the brush.

In the application of shoeheels to the burnishing tool, the work is commonly disposed with thetread face of the heelsin a vertical plane and the shoe is rotated to bring the outer periphery of the heel into i contact with the tool. To assist the operator in presenting the work to the tool, an'adjustable vertical rest is provided against which the tread face of the heel is held and heels of various sizes and heights are apthe wax-spreadirig In the course of such adjustment, the tread restimay very likely be moved to a point in front of the periphery of the burnishing tool such that wax flying off the unused portion of the'tool will pass back of the tread rest and be thrown on the operator. In accordance with another feature of the invention, in the illustrated machine, a protecting flange has been provided upon the supporting bracket to which the tread rest is attached and aco-operating lateral flange has been formed upon the tread rest, these parts being so arranged that there is no opening between the tread restand the protecting flange of the bracket in any position of adjustment of the two. In the illustrated embodiment of the invention the tread rest is mounted for adjustment upon a vertical stud and has its lateral flange curved about the axis of this stud so that it a-lways closes the space between the tread rest and the adjacent vertically disposed protecting flange upon the supporting bracket.

Stillother, features of the invention relate to a novel arrangement for heating the wax pot by combustion whereby its efliciency is improved and the heating burner is so disposed that it wil-lnot be possible for an unskilled operativeto disturb the desired relation of the parts.

. These and other features of the invention may best be understood from a consideration of the. following specification taken in connection with the accompanying drawing, in which:

Fig. 1 is an end. elevation of a burnishing machine showing the relation of the wax-, feeding mechanism to the burnishing tool;

Fig. 2 is a front elevation of the tool end of the machine showing the associated waxdelivering mechanism, with parts broken away and insection;

3 is aplan view of the same parts with the covering hood broken away;

Fig. i is a sectional view through the wax pot taken on the line 44= in Fig. 3; and

r 1g. 5 1s aperspective detail showing the for the wax-spreadcured at the end of a tool shaft 12, which extends through a protecting sleeve 14 (Figs. 3 and 4) forming part of the machine frame. Below the tool shaft and extending parallel to it is a supporting rod 16 which is rigidly clamped in the machine frame, and most of the parts of the illustrated wax-feeding mechanism are mounted upon a bracket 18 slidable along a rod 16 and adapted to be clamped in position by means ofa bolt 20 compressing a split portion of the bracket surrounding the rod. In order that it may not be necessary to depend upon the clamping bolt- 20 to hold the bracket 18 against turning around said rod 16, an upwardly extending arm 22 has been provided which is formed as an integral part of the bracket 18. The upper rear face of the arm 22 is machined to bear against a machined face of a boss 26 formed on the sleeve 14. Inasmuch as the weight of the bracket and the parts supported by it is at the rear of the rod 16, the tendency is to hold the arm 22 against the boss 26 and thus exactly to determine the angular position of the bracket 18 on the rod 16 regardless of its position of lateral adjustment. The bracket 18 is also provided with a downwardly extending arm 30 terminating in a horizontal forked member 32 and provided with an overhanging lip 34. This arm serves as a support for a drip pan 36 which may be engaged beneath the overhanging lip 84 and adjusted to a firm and approximately level position by means of screws 38 in the forked position 32. The

drip pan 36 is provided with lugs 40 Which,

by engagement with the opposite sides of the overhanging lip 34, prevent displacement ,of the drip pan from front to back. The

drip pan. is preferably constructed of cast iron so that it includes a substantial mass of metal with the result that molten wax dripping on the pan is almost immediately congealed and may be rapidly removed and recovered at the will of the operator simply by lifting the pan oil the supporting arm 30 and shaking the wax into a suitable receptacle. Replacement of the drip pah is equally simple inasmuch as it involves simply hooking it beneath the overhanging lip 34 and allowing it to rest on the adjusting screws 88.

The bracket 18 has. a rearward extension 42 (Fig. 1) to support a wax pot 44 in which solid wax may be melted and from which the liquid wax may be removed and delivered to the burnishin g tool. The generally rectangular shape of the wax pot is best shown in Fig. 3. An overflow passage 46 is provided in one of the side walls of the Wax pot so that if the operator puts in too large a chunk of solid wax, the liquid wax will not be raised to a level sufficient to overflow the sides but will be carried directly away through said passage at a pointwhere there are no underlying parts which will become coated. This overflow wax will be received in the drip pan 36 together with any other wax which may be accidentally spilled. An auxiliary wax pot 48 is also formed integrally with the side wall of the wax pot 44, which may be used for another kind of Wax, such as the black wax used more especially for filling the cracks or chinks in pieced heels.

The wax pot 44 may be heated either by combustion, as by means of a flame of illuminating gas or by the heat of an electric cartridge unit and to this end an improved arrangement is provided, which is suitable for use with either method of heating. To this end a substantially vertical passage or chimney 50 is formed in an enlarged portion 52 of one wall of the wax pot in a substantially central position with respect to said pot. When electric heat is used, this passage 50 serves for the reception of an electric unit (not shown) in the manner illustrated in United States Letters Patent No. 1,320,653, granted November 4, 1919, upon my application, in which case a plug may be inserted in the threaded portion 54 at the top of the passage 50 to prevent the admission of liquid wax which might short-circuit the electric unit. The wax pot 44 is formed with a substantially rectangular chamber 56 (Fig. 4) centrally disposed beneath the passage 50 and with an overhanging flange 58 positioned adjacent to the open side of said chamber. The leads from the electric unit are passed through the chamber 56 and the attaching plug is positioned beneath the overhanging flange 58 so that it is pro tected from liquid wax as illustrated in said patent. The chamber 56 is closed by means of a bottom plate 60 having an aperture 62 in its lower side and side openings 64 (Fig. 2) which serve for the admission of air when the wax pot is heated by combustion. hen the latter method of heating is employed, the electric unit is removed and the upwardly extending passage 50 serves as a flue or chimney, there being no plug at the upper end, while the rectangular chamber 56 at the bottom of the wax pot serves as a combustion chamber. Because of the usual failure of operators of such machines to understand that a Bunsen burner is operating at best eiiiciency when the flame is blue and almost invisible, I find it advantageous to provide a burner which is not adjustable and to this end there is herein illustrated a burner 65 formed of a section of metallic tubing which is supported in a bracket 66 (Fig. 3) at tached to a depending part of the flange 58 by suitable screws. The air supply opening 68 for this burner is of such a size and is so positioned with respect to the outlet opening of the burner that proper combustion is insured and it will be noted that the air open- III ing 68is positioned beneath the overhanging, protective flange 58 so that there isno danger that it will become plugged by means of wax accidentally spilled. In addition, I find that the most effective results may be obtained when the bracket 66 is so shaped and the outlet opening of the burner 65 is so placed that the flame will be directedftangentially into the chamber 56 so that it will set up a swirling current of flame and heated air (as indicated by the arrows) which will rise eventually through the substantially centrally disposed vertical passage 50;

Inasmuch as it is usually found, necessary to use the same machine for bothblack and brown shoes, I have arranged the supporting mechanism for the wax pot 44 so that it may be readily removed and replaced when desired. In addition, an adjusting screw 70 is provided, which is threaded at 7 2 (Fig. 1) in the rearwardly extending portion 42 of the bracket 18 and is provided with a disk 74 secured to the screw and engaging a slot 76 in the under side of the plate 60. Since frequent adjustment of the position of the wax pot is not necessary, I have provided a detachable hand wheel 78 having a slotted shank 80 to engage a transverse pin 82 near the forward end of the screw 70. The hand wheel 78 may be detachably engaged with the screw for the adjustment of the Wax pot or may be as readily removed when such adjustment has been completed, thus taking it out of the way and giving more room for the manipulation of the work as it is presented to the tool. The wax spot 44 is removably clamped in position as described in United States Letters Patent No. 1,353,860, granted September 28, 1920, upon my application, by providing a dovetail projection 84 upon the lower side of the bottom plate 60, which is engaged bcneath an undercut 86 formed in the bracket upon one side and is clampedin position by means of a plate 88 pressed against the other side of the dovetail projection 84 by means of a wing nut 90. As in the construction described in the Letters Patent just referred to, the clamping plate 88 is slotted at 92 and 94 to receive a threaded bolt 96 to which the wing nut is attached and a guidingpin 98 so that after partially. releasing; the clamping. plate, it may beallowedto drop down to permit the lateral removal of the wax pot and the associatedparts.

A wax-applying wheel 100, by means of which the melted wax istransferred to the burnishing tool, is journaled in one wallof the wax pot 44 substantially as-described in the patents above mentioned and preferably has one face machined to contact with a machined surface 102 formed in the wall of the wax ot in order to secure adequate contact there tween for the transfer of heat. It will. be noted that a groove 104 (Fig. 4)

formed. in the adjacent wall of the wax pot facilitates the return to the wax pot of. any wax flowing from. the wheel at this side. This wax-applying wheel 100 may berdriven bymeans of a shaft 101 having universal joints and friction connections, as described in said Letters Patent No. 1,353,860, and another bearing for the shaft is provided by a horizontal slot 106 (Fig. 4) formed in an arm 108 integral with the bracket 18. The wax-applying devices preferably, and as illustrated, are so positioned upon the rod 16 that the wax-applying wheel 100 supplies wax to the tool 10 near the lowest point of the sectional profile of the tool. This. is for the reason that the tendency of centrifugal force is to carry the wax to the higher parts of the tool. It is found desirable, in addition, in order to spread the wax more uniformly over the tool than would be accomplished by the wheel 100 alone to provide a reciprocating brush'llO (Fig, 5) which is carried at the outer end of an arm 112 pivotally connected at 114 to a rod 116 passing through bearings 118 formed in the machine frame and reciprocated, to carry the brush back and "forth across the faceof the tool, by means of a rod 120 extending parallel to the rod116 and actuated from a moving part of the machine: in any. suitable manner. A forked arm 122 is secured to the rod 116 to embrace: the arm: 112 and prevent lateral deflection thereof and the arm 112 ispreferably held lightly against the face of the tool 10 by means: of a spring 124. As will be seen from Figs. 3 and 5,.the outer end of the arm 112 is forked and the brush 110 is pivotally mounted therein at 126, there being a light, fiat spring 128' secured to the arm 112 to bear against the upper side of the brush and normally to tilt it into the position best adapted for securing adequate contact with all faces of the tool. As will be noted from Fig. 1, the brush 110 is positioned to'engage the operative face of the tool nearthe upper, rear side thereof away from the opera tor. In machines as heretofore constructed, when it was desired to heat the burnishing tool 10 by means of a gas burner, this burner was usually positioned to deliver a flame against the free end of the tool adjacent to the lowermost point thereof, As a result, when the tool was not in motion, the normal action of the flame carried it upward along either side of the center of the tool and created a heat adjacent to the point of application of the brushwhich was liable to burn the bristles of the brush. Accordingly, in order to remedy this disadvantage and to provide for a more efiicient heating of the tool, I have mounted a burner 1.30, which referably, and as shown, is of the non-adjustable Bunsen type, in a part of the protecting sleeve 14 of the frame of themachine so that the flame will be directed into the tool from the rear side thereof at a point substantially diametrically opposite (see Fig. 1) to the point at which the brush contacts with the tool. As a result of this arrangement, when the tool is not in motion, the flame rises substantially vertically at one side of the tool and emerges through one of the openings between the various sections of the tool at a point considerably removed from the brush, there being no tendency to carry the heat across to the point of application of the brush. On the other hand, when the tool is rotated in a clockwise direction, as viewed from the free end as in Fig. 1, the flame will be carried around through the tool in the manner indicated by the arrows and will effectively heat all parts of the tool. Preferably too, and as shown in F 2, the burner is pointed slightly downwardly in order partly to oflset, when the tool is rotated, the natural tendency of any flame to rise.

In common with machines of this character, a tread rest 132 is provided against which the operator may hold the tread of the heel as the various parts of the periphery of the heel are brought in contact with the burnishing tool. This tread rest, the general construction of which is substantially like that shown in United States Letters Patent No. 1,197,850, granted September 12, 1916, upon the application of Charles Pease, and as in the arrangement there shown, is supported upon a bracket 134 extending outwardly from the protecting sleeve 14 b means of an adjustable, slotted arm 136 which is adapted to be gripped in adjusted position by means of a lever-operated bolt 138. The tread rest 132 is attached to the slotted arm 136 by means of a vertical stud 140 so that adjustment about a substantially vertical axis may be secured, the arrangement being such, however, that the tread rest 132 is clamped to the arm 136 in adjusted position by means of the stud 140. The face of the tread rest herein illustrated,- is provided with a vertically extending rib or bulge 142 (Fig. 3) with rounded crosssection which serves as the supporting surface for the tread of the heel. By reason of the rounded surface of this bulge and because of its relatively limited extent transversely, frictional contact between the work and the tread rest is lessened and the operator is enabled more readily to accommodate slight inaccuracies of the work so that the face of the heel will contact fully with the operative face of the tool. Inasmuch as the adjustment of the tread rest 132 may bring it to a position partially overlying the width of the operative face of the burnishing tool 10 so that wax thrown off by centrifugal force might be thrown back of the tread rest against the operator, I find it desirable so to construct the tread rest and the slotted arm 136 that the operator will be protected from flying wax in all positions of adjustment of the arm and the tread rest. To this end the arm 136 is provided with a depending protecting flange 144 co-operating with which is a lateral flange 146 formed upon the tread rest 132. It will be noted from Fig. 3 that the curvature of the lateral flange 146 is about the center of the stud 140 and that the outer side of the flange 146 comes substantially into contact withthe inner side of the protecting flange 144 upon the arm 136. As a result there can be no opening between the tread rest and the depending flange 144 in any desired position of adjustment of the tread rest with respect to the slotted arm 136.

A hinged cover or shield 150 preferably is provided which completely encloses, aside from an opening to permit the application of work to the tool and rest, all parts of the mechanism including the rear portion of the tool, and this cover is pivotally attached at 152 to the rear end of the bracket extension 42 so that it may be raised when access is desired. When the cover is raised a toe 154 (Fig. 1) formed on the cover adjacent to its hinge is arranged to contact with a ledge 156 formed upon the bracket extension 42 to support the cover in open position without allowing it to turn around its hinge so far that there would be danger of breakage in case of carelessness on the part of the operator. A lip 158 formed at the forward y edge of the cover contacts with a suitably formed portion of the protecting sleeve 14 to support the cover in closed position.

It is believed that the operation of the device will be understood without an extended discussion. When the operator, in changing from black to brown work replaces a Wax pot and the associated waxfeeding wheel, the clamping plate 88 is lifted and the wing nut is partially screwed into engagement so as to hold the wax pot 44 pending exact front to back adjustment thereof by the hand wheel 78 to bring the wax wheel almost but not quite into contact with the burnishing iron 10. If it becomes necessary to adjust the wax wheel 100 laterally of the iron, this may be accomplished by loosening the clamp bolt 20 and moving the whole bracket 18 with the supported parts along the rod 16. Adjustment of the tread rest is secured by loosening and again tightening the clamp bolt 138 and the stud 140 so that the rest is brought into the desired relation to the particular burnishing iron being used, it being understood that the cross-sectional shapes of such burnishing irons are made to correspond very closely to the cross-sectional shape of the periphery of the heels'to be treated and the irons are changed when new styles of heels are to be burnished.

Having thus described the invention, what I claim as new and desire to secure by Letters lPatent of the United Statesis:

1. In a finishing machine, a finishing toojl, means for supplying wax to the periphery of said tool, means for spreading the wax over the periphery comprising a brush contacting with the tool, and means for heating the tool disposed to deliver the maximum heat to the tool at a point remote from the brush.

2. In a finishing machine, a finishing tool, means for supplying wax to the periphery of said tool, means for spreading wax over the periphery comprising a brush contacting with the tool, and means for heating said tool con'iprising a combustion heating device mounted upon the machine with its orifice disposed within the periphery of the tool at a point substantially diametrically opposite the wax spreading brush.

3. In a burnishing machine, a burnishing iron rotatably mounted in the machine, means for supplying wax to the periphery of said iron, means for spreading wax compris- 1 ing a brush contacting with the iron at a point offset from the highest part thereof as the latter is moved in the machine, and means for heating the iron by combustion comprising a burner having its orifice disposed within the periphery of the iron at a point substantially diametrically opposite the point of application of the'spreading brush.

41-. In a machine for operating on boot and shoe parts, a tool, and a stationary work rest supported in 1 juxtaposition to said tool.

against which one surface of the article to be treated may be pressed during treatment of another surface angularly related thereto, said rest being provided with a rib to reduce the frictional contact between the rest and the surface of the work.

5. In a finishing machine for the heels of boots and shoes, a rotary tool, and a substantially vertically disposed work rest in front of and adjacent to said tool, said work rest being curved to conform approximately to the curvature of the periphery of the tool and having its supportin surface provided with a curved rib extending hei htwise of the machine along the face of t e rest so that the tread face of the heel may be supported upon the rib of said rest with a minimum of friction.

6. In a machine for operating on boot and shoe parts, a support, a work rest adjust-ably mounted upon said support, a protecting flange positioned adjacent to said work rest, and a lateral flange upon said work rest cooperating with said protecting flan e in various positions of adjustment of t e work rest.

7 In a machine for operating on boot and shoe parts, a support, a work rest adjustably secured to said support comprising a protecting flange having a substantially vertically disposed surface secured to said support, andmeans for closing the opening between said work rest and said protecting flange in the various positions of adjustment of the Work rest.--w-

1 8. In a machine for operating on boot and shoe parts, a support, an arm adjustably mounted upon said support having :1

depending substantially vertically disposed] flange, and a work rest adjustably attached to said arm and depending therefrom adja cent to said flange, said work rest being provided with a lateral flange constructed and arranged to close the opening between the work rest and the protecting flange in the various positions of adjustment of the work rest.

9. In a finishing machine, a rotary burnishing tool, a fixed support adjacent to said tool, an arm adjustably mounted upon said suppor'tprovided with a protecting flange, and a work rest pivotally mounted upon said arm constructed and arranged to be-variously positioned adjacent to said burnishing iron, said work rest being'provided with a flange curved about the center of adjustment of the work rest constructed and arranged to close the opening between the work rest and the adjacent protecting flange.

10. In a finishing machine, arotary burnishing tool, means for supplying wax to said tool, means for protecting the operator from wax thrown off by centrifugal force,

said means comprising a support, an arm adjustably mounted upon said support and provided with a protecting flange, and a.

work rest adjustably secured to said arm constructed and arranged to 00-0 erate with the protecting flange to protect t e operator from flying wax in the various positions of adjustment of the work rest and the flange.

11. In a finishing machine, a wax receptacle having an enlarged chamber adjacent to the base of the receptacle and an upwardly extending passage substantially centrally disposed with respect to said chamber, and means for supporting a gas burner so that a flame emerging from its outlet is directed into the chamber at the base of the receptacle substantiallytangentially to set up a swirling current which eventually will pass up through the vertical passage and out 111110 the atmosphere.

12.- In a finishing 'machine, a finishing tool, means for supplying. wax to the periphery of said tool, means for spreading the wax over the periphery comprising a brush contacting with the tool, and means for applying heat locally to the tool at a point remote from the brush. t

13. In a machine for operating on boot and shoe parts, a support, a work rest adjustably mountedupon said support, and co-opcrating overlapping flanges upon the work to v rest and the support arranged to protect the positions of adjustoperator in various ment of the Work rest.

14. In a finishing machine, I tacle providedwith an upWar passage arranged to heat the c receptacle, and means for setting up a dly exten swirling current of heated air through said ding name to this specification.

ontents of the JOHN F. STANDISH.

In testimony whereof I have signed my 

